#include<bits/stdc++.h>
#define MAXR 100005
using namespace std;
int cnt[MAXR];

int main()
{

    freopen("duel.in","r",stdin);
    freopen("duel.out","w",stdout);

    int n;
    int ans = 0;
    scanf("%d",&n);

    for(int i = 1;i <= n;i++)
    {
        int r;
        scanf("%d",&r);
        cnt[r]++;
        ans = max(ans,cnt[r]);
    }

    printf("%d\n",ans);

    fclose(stdin);
    fclose(stdout);

    return 0;
}
